package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.constant.RedisConstant;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import com.atguigu.lease.model.entity.SystemUser;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.admin.mapper.SystemUserMapper;
import com.atguigu.lease.web.admin.service.LoginService;
import com.atguigu.lease.web.admin.service.SystemUserService;
import com.atguigu.lease.web.admin.vo.login.CaptchaVo;
import com.atguigu.lease.web.admin.vo.login.LoginVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.wf.captcha.SpecCaptcha;
import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.Objects;
import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {
    @Autowired
    private RedisTemplate<String, Object> redisTemplate;
    @Autowired
    private SystemUserService systemUserService;
    @Autowired
    private SystemUserMapper systemUserMapper;

    @Override
    public CaptchaVo getCaptcha() {
        SpecCaptcha specCaptcha = new SpecCaptcha(130, 48, 4);
        specCaptcha.setCharType(SpecCaptcha.TYPE_DEFAULT);
        String code = specCaptcha.text().toLowerCase();
        String image = specCaptcha.toBase64();
        String key = RedisConstant.ADMIN_LOGIN_PREFIX + UUID.randomUUID();
        redisTemplate.opsForValue().set(key, code, RedisConstant.APP_LOGIN_CODE_RESEND_TIME_SEC, TimeUnit.SECONDS);
        return new CaptchaVo(image, key);
    }

    @Override
    public String login(LoginVo loginVo) {
//        1. 查看验证码是否为空
        if (loginVo.getCaptchaCode() == null) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_NOT_FOUND);
        }
//        2. 查看验证码是否过期
        Object o = redisTemplate.opsForValue().get(loginVo.getCaptchaKey());
        System.out.println(RedisConstant.ADMIN_LOGIN_PREFIX+loginVo.getCaptchaKey());
        System.out.println( o);
        if (o == null) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_EXPIRED);
        }
        String code = loginVo.getCaptchaCode();
//        3.检查验证码是否正确
        if (!code.equalsIgnoreCase(loginVo.getCaptchaCode())) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_ERROR);
        }
//        4.检查用户名密码是否正确
        SystemUser systemUser = systemUserMapper.customGeyOne(loginVo.getUsername());
        if (systemUser == null) {
            throw new LeaseException((ResultCodeEnum.ADMIN_ACCOUNT_NOT_EXIST_ERROR));
        }
        if (!Objects.equals(systemUser.getPassword(), DigestUtils.md5Hex(loginVo.getPassword()))) {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_ERROR);
        }
//        检查账号是否被禁用
        if (systemUser.getStatus()== BaseStatus.DISABLE){
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_DISABLED_ERROR);
        }
        return JwtUtil.createToken(systemUser.getId(), systemUser.getPassword());
    }
}
